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VAS5175 一到两节充电 2.0A

VAS5175是一款5V-24V输入、高度集成的锂离子/锂聚合物电池开关充电器IC，具有高性能

精确的充电电流和电压调节。它密切监视电池组温度，以便

仅在当前温度窗口内充电。它还提供电池检测、预处理，

充电终止和充电状态监控。热调节回路将充电电流降低到

保持结温125°C操作期间。如果接头温度超过155°C

执行超温停机并停止运行以确保安全。

VAS5175适用于1电池/2电池充电。它集成了24V额定值，低Ron N-FET

采用1.0MHz同步降压电路，实现高效的电池充电，简化了元器件和PCB设计。

VAS5175有SOP8-e包装。

The VAS5175 is a 5V-24V input, highly integrated Li-ion/ Li-polymer battery switching charger IC with high
accuracy charge current and voltage regulation. It closely monitors the battery pack temperature to allow
charge progress only in a present temperature window. It also provides battery detection, pre-conditioning,
charge termination, and charge status monitoring. The thermal regulation loop reduces charge current to
maintain the junction temperature of 125°C during operation. If the junction temperature exceeds 155°C,
it performs over-temperature shutdown and stops operating to ensure safety.
The VAS5175 is suitable for 1Cell / 2Cells battery charging. It integrates 24V rating, low Ron N-FET
with a 1.0MHz synchronous buck for efficient battery charging and simply components and PCB design.
VAS5175 is available in SOP8-e package.

Features
 1MHz Synchronous Switching
 Built-in MOS
 Up to 2A Programmable Charge Current
 1/2-cell battery
 Wide Input Voltage Range: 5.0V to 24V
 Up to 93% Efficiency
 Soft start
 Internal loop compensation
 Multiple protection
Output short circuit protection 
NTC detection, Over temperature protection
Battery over-voltage protection (BOVP)
Safety Timer
Thermal feedback regulation @ Tj = 125
 Charge status indication
 Accuracy
± 1% Battery Voltage Regulation (CV)
± 10% Charge Current Regulation (CC)
Applications
 Notebook
 Electrical tools
 Bluetooth speakers
 POS
 Walkie-talkie